品名:模块原产地:德国用途:炼油厂快递:顺丰是否加工定制:否
Some concepts about SIS system
1. SIS and ESD
2. SIS, PLC and DCS
3. Security and availability
4. Safety system must have TUV safety certificate.
Certification reports and safety manuals
5. Essential and structural safety
6. Gravity and redundancy
7. Hot standby, cold standby and online
8. Intrinsically safe loop and safety loop